TABLE 4.
Intestinal lesion scores of birds immunized with two injections intramuscularly and then infected with a moderate challenge with C. perfringens
| Protein | No. of chickens | No. of chickens with the following lesion scores:
|
Mean no. of chickens | |||||
|---|---|---|---|---|---|---|---|---|
| 0 | 1+ | 2+ | 3+ | 4+ | 5+ | |||
| Vehicle-only controls | 18 | 1 | 4 | 9 | 2 | 1 | 1 | 2.05 |
| Mock controls | 10 | 0 | 1 | 6 | 3 | 0 | 0 | 2.20 |
| HPa | 17 | 10 | 3 | 4 | 0 | 0 | 0 | 0.64 |
| GPD | 17 | 3 | 8 | 6 | 0 | 0 | 0 | 1.17 |
| tPFOR | 18 | 7 | 4 | 3 | 3 | 0 | 1 | 1.33 |
| FBA | 18 | 2 | 7 | 6 | 2 | 0 | 1 | 1.66 |
a
The immunized group had significantly fewer chickens with lesions then the vehicle-only control group (Fisher's exact test, P ≤ 0.05).